February 2010
Intermediate to advanced
460 pages
16h 22m
English
book
z/OS Distributed File Service zSeries File System Implementation z/OS V1R11
by Paul Rogers, Robert Hering
Content preview from z/OS Distributed File Service zSeries File System Implementation z/OS V1R11
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Chapter 6. Performance and tuning 273
Metadata cache details
Cursor sensitivity in the metadata section of the cache activity data displays the metadata
Cache Details panel.
The metadata backing cache is:
Optional
Can be used as an extension to the metadata cache
Resides in a data space
Transaction cache details
Cursor sensitivity in the Trx section of the cache activity data displays the Transaction Cache
Details pop-up panel. In this display, EC merge rate is the number of transaction class merges
per second.
zFS decides when a transaction is related to, or dependent on, another transaction. When
this determination is made, the transac
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